20000mah Blank Case With PCBA DIY (Do It Yourself) Kit For Power Bank Making

Fits for cellphones with a usb socket(can charge all cell phones with your own USB cable)
Support replacement of 18650 Li-battery. Easy to use and secure
Can install 6 X 18650 battery (battery is not included, and you need to weld the batteries and the PCB board yourself)
Can also be used as Battery charger for 18650 batteries
Function: power bank and rechargeable 18650 battery charger,also can be used as flashlight for emergency.

Product Description

Description:
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Fits for cellphones with a usb socket(can charge all cell phones with your own USB cable)
Support replacement of 18650 Li-battery. Easy to use and secure
Can install 6 X 18650 battery (battery is not included, and you need to weld the batteries and the PCB board yourself)
Can also be used as Battery charger for 18650 batteries
Function: power bank and rechargeable 18650 battery charger,also can be used as flashlight for emergency.
Short-circuit & Overtime protection:when your phone is fully charged,the power bank will stop charging automatically.